Options
- General
 
- Photo Archive Location
 - Select a location to archive with Archive, Archive a Copy Menu.
 - Photo Archive Template
 - Select a subfolder creation scheme when archving your photos.
 - Startup Location
 - Select a startup location of FocusOn Image Viewer.
- Most recently used location
 - Set most recently used location as a startup location.
 - Photo archive location
 - Set the photo archive location as a startup location.
 - Last directly changed location
 - Set last directly changed location as a startup location. This exclude a location changed by Windows file explorer.
 
 - Delete to Recycle Bin
 - Move a file to the Recycle Bin when deleting.
 - Always open images in the same window
 - Run only one instance of FocusOn Image Viewer and view images in the same window.
 - View in the file list
 - Select item types to show in the file list.
- Image
 - Show only image files in the list.
 - Image+Document(PDF, PS)
 - Show image files and document files in the list.
 - All
 - Show all files in the list.
 
 - Show Folders
 - Show folders in the file list.
 - Show hidden files
 - Show hidden files in the file list.
 - Rotate images by EXIF orientation.
 - Show images rotated by EXIF orientation.
 - Use embedded thumbnail in images (Fast but can be low quality)
 - Use an embedded thumbnail in images when generating thumbnails.
 - Cache image thumbnails
 - Save the generated thumbnails in the cache to use it again.
 - Behavior on image changes
 - Ask
 - If an image is changed, you will be asked.
 - Preserve changes
 - If an image is changed, the changes will be saved to preserve.
 
- View
 
- Default Zoom
 - 50%
 - Zoom the image to 50%.
 - 100%
 - Show the image in its original size.
 - 200%
 - Zoom the image to 200%.
 - Fit to the window
 - Fit all images to the window size.
 - Fit to the window (Large image)
 - Fit large images to the window size.
 - Fit to the window (Small image)
 - Fit small images to the window size.
 - Fit to the window width
 - Fit the image width to the window width.
 - Fit to the window height
 - Fit the image height to the window height.
 
- Zoom Quality
 - High quality reduction
 - Use high quality zoom when shrinking the image.
 - High quality enlargement
 - Use high quality zoom when enlarging the image.
 
- Use embedded thumbnail in RAW file
 - Show RAW file using the embedded thumnail in RAW file. Fast.
 - Always open as fullscreen.
 - Always open as fullscreen when changing to the Image View mode.
 - Wrap around
 - Go to the last or first image when going over the first or last image continuously.
 - Grid
 - Gridline every
 - Specify the interval to show the grid.
 - Color
 - Specify the color of the grid.
 
- Slide Show
 - Delay
 - Enter the time to show the images in the slide show.
 - Order
 - Fowared
 - Go to the next image.
 - Backward
 - Go to the previous image.
 - Random
 - Go to the random image.
 
- Interface
 
- Mouse
 - Click
 - Select an area of the image, If possible, scroll the image
 - If scrolling is possible, scroll the image. Otherwisze select an area of the image.
 - Select an area of the image
 - Select an area of the image always.
 - Left area - Go to the previous image, Right area - Go to the next image
 - Go to the previous image when clicking the left area of the image and go to the next image when clicking the right area of the image.
 
- Go to the previous or next image on click in the fullscreen.
 - Go to the previous image when clicking the left area and go to the next image when clicking the right area on the fullscreen.
 - Change to the List View mode on double click
 - hange to the List View mode when double clicking the image.
 - Wheel scroll
 - Go to the previous or next image
 - Go to the previous or next image when scrolling the mouse wheel.
 - Zoom the image
 - Zoom the image when scrolling the mouse wheel.
 
- Keyboard
 - Arrow keys
 - Go to the previous or next image
 Go to the previous or next image when pressing the arrow keys.
- Scroll the image
 Scroll the image when pressing the arrow keys.
- System
 
- Add 'Browse with FocusOn Image Viewer' to Explorer's context menu
 - Add 'Browse with FocusOn Image Viewer' menu to the Windows File Explorer's context menu of the folder.
 - File associations
 - Associate the selected file extension to open in FocusOn Image Viewer.
- Check All
 - Check all extensions.
 - Windows Control Panel File Association...
 - Open Windows Control Panel File Association. You can only change file associations on the Control Panel in Windows 8 or later.